Treasury and Giant-Size editions are the only physical comics I still collect. I always thought it was a shame that the limitations of the newsstand precluded oversize comics from being the rule instead of the exception. To my knowledge, the page sizes of those editions are close to the actual size of the original art pages, and I have to think that most artists would prefer their comics to be read in that oversize format.*

*One of the things I like about digital comics is that you effectively get to read every comic as if it's a giant-size/treasury edition.